Fire-arm



I (No Model.) Q

w. 11. DAVENPORT.

FIRE ARM.

7 No. 326,276 Patented 8epi; 15, 188E WITNESSES.

INVENTCIF UNITED STATES PATENT O FICI WILLIAMB. DAVENPORT, or nxBamcE, massacnusnrrs;

FIRE-ARM.

SPECIFICATION forming part! Letters Patent 120326376, dated aeptember 1e, 1

Applicationtlled June 3, 1885. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. DAVEW.

Pom, a citizen of the United States, residing at Uxbridge, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Fire-Arms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the to art to which it appertains to make and use the same, reference being bad to the accompanying drawin and toletters or figures of reference marl: thereon, which form a part of this specification.

My present invention relates to rifles; and

it consists, essentially, in the novel construction of the breech-block, whereby the firingpin is adapted to be readily adjusted therein for the purpose of converting the rifle into a so center-tire" or rim-tire, as desired.

The object of my invention is to provide a ride with mechanism whereby it can be used both for center and rim fire cartridges, the name being effected by simple and'eificient :5 means.

In the accompanying sheet of drawings, Figure 1 represents (reduced) the rear portion of a ride in partial central section, showing the breech -bloek, hammer, &c., in position for firing, as in use. Fig. 2 is a front view of the breech-block, showing the firing-pin adjusted therein for center-firing. Fig. 3 is a similar view showing the firing-pin adjusted for lateral or rim tiring. Fig. 4 is a transverse sectional view on lines: a: of Fig. 2. Fig. 5 is a plan view of the breech-block embodylug my invention. Fig. 6 is a front view of the breech-block, the firing-pin and its holder being removed. Fig. 7 is a sectional view similar to Fig. 4, the firing-pin, however, be-

ing in a horizontal position, or in line with the longitudinal axis of the barrel. Figs. 8 nnd 0 represent end views of shells adapted lor rim and center firing, respectn'ely.

The following isa detailed description of the improvements hereinafter claimed:

A, again referring to the drawings, designates a rule of the ordinary type, (the breech portion thereof being, however, only repre- 5o sented,) having the barrclm, breech-frame N, hammer ll, trigger I, swinging guards, and

breech-block link L connecting sail all as usually constructed.

B designates the: breech-block mo the frame N, and connected to the 1 means of the screw-threaded remov l, the general form and arrangemen breech-block being as common to thr rifles or fire-arms. 1

F is a steel plate fitted into and at secured to the face a of the breechright angles to the axis of the ba forming the base of the connterbore, s being about one-eighth of an inch sh less, than the horizontal face of said E is the firing-pin, of ordinary 1 tion, the same being cylindrical ant its'i'orward portion reduced in diamett terminates in the rounded point e. aperture, 0, is formed in the breechan angle with its face u, (see Figs. I for the purpose of receiving said fil the central line of the hole being in 1 vertical central plane as is the axis 01 re]. One of the lateral sides of said T made tapering or diverging from point thereof, thus forming the e opening a at the front of the block, shown in Figs. 5 and 6.

The steel plate F is drilled to recei the small or front end, a, of the fil said hole being in line with the apt before described, and extending rec in a funnel or cone shape form, as sh in Fig. 4. Now, when the right-ham end of the plate F is: placed flush with responding edge of the block B, as 5 Figs. 2 and 5, the iiringqain E is then for central firing, the screw-threads serving to retain the plate in positi placing and securing the plate F fll the opposite side or edge of the 11 shown in Fig. 3, the firing-pinis then to be used for rim-fire cartridges.

A pin, 0', passing transversely thrc block B, in connection with the flattel tion a of the firing-pin, serves to ll longitudinal movement of the latter the same time prevents its axial motil B, Fig. 7, represents the breech-blo mg the firing-pin mounted therein dir line with the bore of the rifle-barrel.

7 The operation of the device may be substantially described as follows: Assumin now that shells 0, having center caps, are to e used in said rifle A, the forward end, e. of the firing- 5 pin would then be in the position shown in g. 2-1. e., in line with the center of the barrel and the link L. After exploding the shell, by means of the hammer striking against the grojectin rear portion of the firing-pin, the KO reech-b ock is depressed by means of the guard S and its connection L, (see dotted-line position, Fig. 1,) thereby adapting the shell tobewithdrawn and a new one inserted within the barrel, after which the parts are returned to their normal position, as shown.

In order to adapt the rifle to explode a rimflre shell, of, the lower screw-threaded pin, l, of the link L is removed, thereby permitting the breech-block, 8:0,, to be withdrawn. The so binding-screwy is thenloosened and the plate F carried to the leit and secured in position by means of said serew g, as fuliyshown in Fig. 3. The whole is then replaced within the breech-frame N and connected with the :5 guard S, as before, the rear end of the firingpin in both cases remaining unchanged-with relation to the hammer B.

By means of this invention I am enabled to combine in one breech-block means for pro- 0 dueing both central and rim firing, thereby dispensing with an extra breech-block and ilringin, which otherwise would be required to be urnished with the rifle.

It is obvious that the plate F, or its equiva- 5 lent, ma be adjustably secured to the face of the bloc B in a direction at right angles to the position as drawn, thereby adapting the tiring-pin to engage the cap or fulminate oi the shell -iu a verticalplane' or, in other swords, the breech-block may be constructed so as to permit the and e of the firing-pin to be adjusted vertieall in lieu of the lateral adjustment, without eparting from the spirit of the invention.

A coiled spring may be emplo; the firing-pin rearwardly, alth cally in most instances I prefer t vice without the spring.

Having thus described my inrt claim as new, and desire to secu Patent oi the United States, is-

1. The sliding breech-block h ing-pin mounted therein, substan inbefore described, in combinat apertnred plate adj ustably secnr of said block, as and for the par;

2. In a rifle, the breech-block firing-pin mounted therein, and vided with the apertnred plate secured to the face thereof, in with the swinging guard S. an neeting said block and guard, su shown, and for the purpose he forth.

3. The breech-block B,-here having the elongated aperture therein, substantially in line wi the barrel m, in combination w tured plate F, adjustably mou cured to the face of said block, connect the block with the gr tially as shown, and for the pur 4. The breech-block herein d1 ing the elongated aperture the ther provided with the aperture justably secured to the face of combination with the firing-1 mounted within said block and by the forward end of the firing ed to be adjusted both for rim :1 cartridges, substantially as st forth.

In testimony whereof I have a nature in presence of two witnt WM. H. DA

Witnesses:

G150. H. Rswuxe'rox, CHARLES HANNIGAN. 

